Distinguish between --uncached-only and a missing option.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Don't run the queue when matching.

There's no need to run the queue.  All the metadata should already be
stored, and reading the messages in order to process the queue is very
expensive.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>